| CHILL-88 | 1988 | International | |||
| gcc | 1988 | International | |||
| Modula-3 | 1988 | Specialised Languages | OO C family | International | OO language with genericity and prototyping |
| Prolog/V | 1988 | String and List Processing | Horn clause | International | Prolog implemented in Smalltalk |
| SDL | 1988 | Specialised Languages | International | Specification and Description Language |